如何创建一个复合主键休眠JPA？ [英] how to create a composite primary key hibernate JPA?
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问题描述
我尝试使用hibernate JPA从2个外键创建表中的复合主键，但是却给我带来了错误。我找到了一些解决方案，但没有任何内容
表格之间的关系如下所示：
表格客户
clientID（PK）
名字
姓氏
。
表CarService
serviceID（PK）
DescriptionOfFailure
。
。
表ServiceDepartment
clientID（PK）
serviceID（PK）
价格
。
执行我的代码如下所示：
< pre $
@Entity
public class ServiceDepartmentBean实现ServiceDepartmentI {
@EmbeddedId
private ServiceDepartmentPK serviceDepartmentPK = new ServiceDepartmentPK（）;
@Column（name =clientID，nullable = false，updatable = false，insertable = false）
private长客户端;
@Column（name =serviceId，nullable = false，updatable = false，insertable = false）
私人长期服务;
@Column
私人双重价格;
。
。
。
。
public void setClient（ClientI client）{
serviceDepartmentPK.setClient（client）;
}
public void setService（CarServiceI service）{
serviceDepartmentPK.setService（service）;
public ClientI getClient（）{
return serviceDepartmentPK.getClient（）;
}
public CarServiceI getService（）{
return serviceDepartmentPK.getService（）;
}
@Entity
公共类CarServiceBean实现CarServiceI {
@Id
@GeneratedValue
private long serviceId;
@Column（nullable = false）
private String descriptionOfFailure;
@OneToMany（mappedBy =service）
private List< ServiceDepartmentI> servicesDepartments;
public List< ServiceDepartmentI> getServicesDepartments（）{
return servicesDepartments;
}
。
。
//设置我的方法
@Entity
公共类ClientBean实现ClientI {
@Id
@GeneratedValue
私有长客户端ID;
@Column（nullable = false）
private String firstName;
@Column（nullable = false）
private String lastName;
@OneToMany（mappedBy =client）
private List< ServiceDepartmentI> servicesDepartments;
public void setServicesDepartments（List< ServiceDepartmentI> servicesDepartments）{
this.servicesDepartments = servicesDepartments;
}
public List< ServiceDepartmentI> getServicesDepartments（）{
return servicesDepartments;
public class ServiceDepartmentPK实现Serializable {
@ManyToOne
私有ClientI客户端;
@ManyToOne
私人CarServiceI服务;
public void setClient（ClientI client）{
this.client = client;
}
public ClientI getClient（）{
return client;
}
public void setService（CarServiceI service）{
this.service = service;
}
public CarServiceI getService（）{
return service;
当尝试构建apllication时，会在控制台中引发错误：
stacktrace：
[INFO] annotations.EntityBinder在表ServiceDepartmentBean上绑定实体com.fit.beans.ServiceDepartmentBean
[错误] ioc.Registry错误调用构造函数public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl（org.slf4j.Logger，java.util.List）：java.lang.NullPointerException
[错误] ioc.Registry操作跟踪：
[错误] ioc.Registry [1]实现服务HibernateSessionSource
[错误] ioc.Registry [2]通过org.apache.tapestry5.internal.hibernate实例化服务HibernateSessionSource实现。 HibernateSessionSourceImpl（Logger，List）（在HibernateSessionSourceImpl.java:36）通过org.apache.tapestry5.hibernate.HibernateCoreModule.bind（ServiceBinder）（在HibernateCoreModule.java:45）
[错误] ioc.Registry [3]调用构造函数org.apache.tapestry5.internal.hibernate.Hibernate SessionSourceImpl（Logger，List）（在HibernateSessionSourceImpl.java:36）通过org.apache.tapestry5.hibernate.HibernateCoreModule.bind（ServiceBinder）（在HibernateCoreModule.java:45）（用于服务'HibernateSessionSource'）
[ERROR ] HibernateCoreModule.HibernateSessionSource服务构造HibernateSessionSource失败：错误调用构造函数public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl（org.slf4j.Logger，java.util.List）：java.lang.NullPointerException
org。 apache.tapestry5.ioc.internal.OperationException：错误调用构造函数公共org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl（org.slf4j.Logger，java.util.List中）：显示java.lang.NullPointerException
。在组织.apache.tapestry5.ioc.internal.OperationTrackerImpl.logAndRethrow（OperationTrackerImpl.java:121）
在org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke（OperationTrackerImpl.java:88）
。在组织.apache.tapestry5.ioc.internal.PerThreadOper ationTracker.invoke（PerThreadOperationTracker.java:87）
位于org.apache.tapestry5.ioc.internal.RegistryImpl.invoke（RegistryImpl.java:1121）
位于org.apache.tapestry5.ioc.internal。 util.ConstructionPlan.createObject（ConstructionPlan.java:60）
在org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.createObject（ConstructorServiceCreator.java:61）
在org.apache.tapestry5.ioc。 internal.OperationTrackingObjectCreator $ 1.invoke（OperationTrackingObjectCreator.java:45）在org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke（OperationTrackerImpl.java:74）
在org.apache.tapestry5.ioc .internal.PerThreadOperationTracker.invoke（PerThreadOperationTracker.java:87）
at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke（RegistryImpl.java:1121）
任何帮助都会被赞赏=）
重构后的新错误stacktrace：
[INFO] cfg.AnnotationBin der注释类中的绑定实体：com.fit.beans.CarServiceBean
[INFO] annotations.EntityBinder在表CarServiceBean上绑定实体com.fit.beans.CarServiceBean
[INFO] cfg.AnnotationBinder注释中的绑定实体类：com.fit.beans.ServiceDepartmentBean
[INFO] annotations.EntityBinder绑定实体com.fit.beans.ServiceDepartmentBean上表ServiceDepartmentBean
[错误] ioc.Registry错误调用构造函数公共org.apache.tapestry5 .internal.hibernate.HibernateSessionSourceImpl（org.slf4j.Logger，java.util.List）：没有为实体指定标识符：com.fit.beans.ServiceDepartmentBean
[错误] ioc.Registry操作跟踪：
[错误] ioc.Registry [1]实现服务HibernateSessionSource
[错误] ioc.Registry [2]通过org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl（Logger，List）实例化服务HibernateSessionSource实现（在HibernateSessionSourceImpl。 java：36）通过org.apache.tapestry5.hibernate.Hibern ateCoreModule.bind（ServiceBinder）（在HibernateCoreModule.java:45）
[错误] ioc.Registry [3]调用构造函数org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl（Logger，List）（在HibernateSessionSourceImpl.java ：36）通过org.apache.tapestry5.hibernate.HibernateCoreModule.bind（ServiceBinder）（在HibernateCoreModule.java:45）（用于服务'HibernateSessionSource'）
[错误] HibernateCoreModule.HibernateSessionSource服务构造HibernateSessionSource失败：错误调用构造函数public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl（org.slf4j.Logger，java.util.List）：没有为实体指定标识符：com.fit.beans.ServiceDepartmentBean
org.apache.tapestry5 .ioc.internal.OperationException：调用构造函数的错误public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl（org.slf4j.Logger，java.util.List）：没有为实体指定标识符：com.fit.beans.ServiceDepartmentBean
在org.apache.ta pestry5.ioc.internal.OperationTrackerImpl.logAndRethrow（OperationTrackerImpl.java:121）
处org.apache org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke（OperationTrackerImpl.java:88）
。 tapestry5.ioc.internal.PerThreadOperationTracker.invoke（PerThreadOperationTracker.java:87）
在org.apache.tapestry5.ioc.internal.RegistryImpl.invoke（RegistryImpl.java:1121）
在org.apache。 tapestry5.ioc.internal.util.ConstructionPlan.createObject（ConstructionPlan.java:60）
at org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.createObject（ConstructorServiceCreator.java:61）
at org。 apache.tapestry5.ioc.internal.OperationTrackingObjectCreator $ 1.invoke（OperationTrackingObjectCreator.java:45）在org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke（OperationTrackerImpl.java:74）
。在组织.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke（PerThreadOperationTracker.java:87）
at org.apache.tapestry5.i oc.internal.RegistryImpl.invoke（RegistryImpl.java:1121）
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator.createObject（OperationTrackingObjectCreator.java:49）
at org.apache.tapestry5。 ioc.internal.SingletonServiceLifecycle.createService（SingletonServiceLifecycle.java:29）
at org.apache.tapestry5.ioc.internal.LifecycleWrappedServiceCreator.createObject（LifecycleWrappedServiceCreator.java:46）
at org.apache.tapestry5。 ioc.internal.AdvisorStackBuilder.createObject（AdvisorStackBuilder.java:63）
位于org.apache.tapestry5.ioc.internal.InterceptorStackBuilder.createObject（InterceptorStackBuilder.java:54）
位于org.apache.tapestry5。 ioc.internal.RecursiveServiceCreationCheckWrapper.createObject（RecursiveServiceCreationCheckWrapper.java:60）
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator $ 1.invoke（OperationTrackingObjectCreator.java:45）
at org.apache.tapestry5 .ioc.internal.OperationTrackerImpl.invo ke（OperationTrackerImpl.java:74）
在org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke（PerThreadOperationTracker.java:87）
。
。
。
。
。
导致：java.lang.RuntimeException：调用构造函数的错误public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl（org.slf4j.Logger，java.util.List）：没有为entity：com指定标识符。在org.apache.tapestry5.ioc.internal.util.ConstructorInvoker.invoke（ConstructorInvoker.java:57）上的fit.beans.ServiceDepartmentBean
.invoke（LoggingInvokableWrapper.java:42）
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke（OperationTrackerImpl.java:74）
... 72 more
引起： org.hibernate.AnnotationException：没有为实体指定标识符：com.fit.beans.ServiceDepartmentBean
在org.hibernate.cfg.AnnotationBinder.bindClass（AnnotationBinder.java:672）
在org.hibernate.cfg .AnnotationConfiguration.processArtifactsOfType（AnnotationConfiguration.java:546）
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile（AnnotationConf org.hibernate.cfg.Configuration.buildSessionFactory（Configuration.java:1333）
org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory（AnnotationConfiguration.java:867）
$ b $ $ b at org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl。< init>（HibernateSessionSourceImpl.java:46）
at sun.reflect.NativeConstructorAccessorImpl.newInstance0（Native Method）$ b $ sun at.reflect .NativeConstructorAccessorImpl.newInstance（NativeConstructorAccessorImpl.java:39）
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance（DelegatingConstructorAccessorImpl.java:27）
at java.lang.reflect.Constructor.newInstance（Constructor.java:513 ）
at org.apache.tapestry5.ioc.internal.util.ConstructorInvoker.invoke（ConstructorInvoker.java:48）
... 74 more
解决方案
从
中移除构造函数 @EmbeddedId
private ServiceDe partmentPK serviceDepartmentPK;
从ServiceDepartmentPK类中删除@ManyToOne注释并将字段类型设置为long或int
@Embeddable
公共类ServiceDepartmentPK实现Serializable {
private static final long serialVersionUID = 1L;
@Column（name =COLUMN_NAME）
private long clientId;
@Column（name =COLUMN_NAME）
private carServiceId;
public ServiceDepartmentPK（）{
}
//客户端和服务器的getters设置器ids -s
public boolean equals（Object other）{
if（this == other）{
return true;
}
if（！（other ServiceofPackagingPK））{
return false;
}
ServiceDepartmentPK castOther =（ServiceDepartmentPK）other;
返回
（this.scopeId == castOther.clientId）
&& （this.scriptId == castOther.carServiceId）;
public int hashCode（）{
final int prime = 31;
int hash = 17;
hash = hash * prime +（（int）（this.clientId ^（this.clientId>>> 32）））;
hash = hash * prime +（（int）（this.carServiceId ^（this.carServiceId>>>> 32）））;
返回散列;
}
}
i try to create composite primary key in table from 2 foreign key using hibernate JPA,but gives me error.I find some solution on net but nothing
The relations between tables looks like this:
Table Client
clientID(PK)
FirstName
LastName
.
Table CarService
serviceID(PK)
DescriptionOfFailure
.
.
Table ServiceDepartment
clientID(PK)
serviceID(PK)
price
.
implementation of my code looks like this:
@Entity
public class ServiceDepartmentBean implements ServiceDepartmentI {
@EmbeddedId
private ServiceDepartmentPK serviceDepartmentPK = new ServiceDepartmentPK();
@Column(name="clientID", nullable=false, updatable=false, insertable=false)
private Long client;
@Column(name="serviceId", nullable=false, updatable=false, insertable=false)
private Long service;
@Column
private double price;
.
.
.
.
public void setClient(ClientI client){
serviceDepartmentPK.setClient(client);
}
public void setService(CarServiceI service){
serviceDepartmentPK.setService(service);
}
public ClientI getClient(){
return serviceDepartmentPK.getClient();
}
public CarServiceI getService(){
return serviceDepartmentPK.getService();
}
@Entity
public class CarServiceBean implements CarServiceI {
@Id
@GeneratedValue
private long serviceId;
@Column(nullable = false)
private String descriptionOfFailure;
@OneToMany(mappedBy="service")
private List<ServiceDepartmentI> servicesDepartments;
public List<ServiceDepartmentI> getServicesDepartments() {
return servicesDepartments;
}
.
.
//set i get method
@Entity
public class ClientBean implements ClientI {
@Id
@GeneratedValue
private long clientID;
@Column(nullable = false)
private String firstName;
@Column(nullable = false)
private String lastName;
@OneToMany(mappedBy = "client")
private List<ServiceDepartmentI> servicesDepartments;
public void setServicesDepartments(List<ServiceDepartmentI> servicesDepartments) {
this.servicesDepartments = servicesDepartments;
}
public List<ServiceDepartmentI> getServicesDepartments() {
return servicesDepartments;
}
}
public class ServiceDepartmentPK implements Serializable {
@ManyToOne
private ClientI client;
@ManyToOne
private CarServiceI service;
public void setClient(ClientI client) {
this.client = client;
}
public ClientI getClient() {
return client;
}
public void setService(CarServiceI service) {
this.service = service;
}
public CarServiceI getService() {
return service;
}
}
when try to build apllication throws me a error in console: stacktrace:
[INFO] annotations.EntityBinder Bind entity com.fit.beans.ServiceDepartmentBean on table ServiceDepartmentBean
[ERROR] ioc.Registry Error invoking constructor public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): java.lang.NullPointerException
[ERROR] ioc.Registry Operations trace:
[ERROR] ioc.Registry [ 1] Realizing service HibernateSessionSource
[ERROR] ioc.Registry [ 2] Instantiating service HibernateSessionSource implementation via org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(Logger, List) (at HibernateSessionSourceImpl.java:36) via org.apache.tapestry5.hibernate.HibernateCoreModule.bind(ServiceBinder) (at HibernateCoreModule.java:45)
[ERROR] ioc.Registry [ 3] Invoking constructor org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(Logger, List) (at HibernateSessionSourceImpl.java:36) via org.apache.tapestry5.hibernate.HibernateCoreModule.bind(ServiceBinder) (at HibernateCoreModule.java:45) (for service 'HibernateSessionSource')
[ERROR] HibernateCoreModule.HibernateSessionSource Construction of service HibernateSessionSource failed: Error invoking constructor public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): java.lang.NullPointerException
org.apache.tapestry5.ioc.internal.OperationException: Error invoking constructor public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): java.lang.NullPointerException
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.logAndRethrow(OperationTrackerImpl.java:121)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:88)
at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87)
at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1121)
at org.apache.tapestry5.ioc.internal.util.ConstructionPlan.createObject(ConstructionPlan.java:60)
at org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.createObject(ConstructorServiceCreator.java:61)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator$1.invoke(OperationTrackingObjectCreator.java:45)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87)
at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1121)
Any help would be appreciated =)
new error after refactoring stacktrace:
[INFO] cfg.AnnotationBinder Binding entity from annotated class: com.fit.beans.CarServiceBean
[INFO] annotations.EntityBinder Bind entity com.fit.beans.CarServiceBean on table CarServiceBean
[INFO] cfg.AnnotationBinder Binding entity from annotated class: com.fit.beans.ServiceDepartmentBean
[INFO] annotations.EntityBinder Bind entity com.fit.beans.ServiceDepartmentBean on table ServiceDepartmentBean
[ERROR] ioc.Registry Error invoking constructor public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): No identifier specified for entity: com.fit.beans.ServiceDepartmentBean
[ERROR] ioc.Registry Operations trace:
[ERROR] ioc.Registry [ 1] Realizing service HibernateSessionSource
[ERROR] ioc.Registry [ 2] Instantiating service HibernateSessionSource implementation via org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(Logger, List) (at HibernateSessionSourceImpl.java:36) via org.apache.tapestry5.hibernate.HibernateCoreModule.bind(ServiceBinder) (at HibernateCoreModule.java:45)
[ERROR] ioc.Registry [ 3] Invoking constructor org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(Logger, List) (at HibernateSessionSourceImpl.java:36) via org.apache.tapestry5.hibernate.HibernateCoreModule.bind(ServiceBinder) (at HibernateCoreModule.java:45) (for service 'HibernateSessionSource')
[ERROR] HibernateCoreModule.HibernateSessionSource Construction of service HibernateSessionSource failed: Error invoking constructor public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): No identifier specified for entity: com.fit.beans.ServiceDepartmentBean
org.apache.tapestry5.ioc.internal.OperationException: Error invoking constructor public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): No identifier specified for entity: com.fit.beans.ServiceDepartmentBean
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.logAndRethrow(OperationTrackerImpl.java:121)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:88)
at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87)
at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1121)
at org.apache.tapestry5.ioc.internal.util.ConstructionPlan.createObject(ConstructionPlan.java:60)
at org.apache.tapestry5.ioc.internal.ConstructorServiceCreator.createObject(ConstructorServiceCreator.java:61)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator$1.invoke(OperationTrackingObjectCreator.java:45)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87)
at org.apache.tapestry5.ioc.internal.RegistryImpl.invoke(RegistryImpl.java:1121)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator.createObject(OperationTrackingObjectCreator.java:49)
at org.apache.tapestry5.ioc.internal.SingletonServiceLifecycle.createService(SingletonServiceLifecycle.java:29)
at org.apache.tapestry5.ioc.internal.LifecycleWrappedServiceCreator.createObject(LifecycleWrappedServiceCreator.java:46)
at org.apache.tapestry5.ioc.internal.AdvisorStackBuilder.createObject(AdvisorStackBuilder.java:63)
at org.apache.tapestry5.ioc.internal.InterceptorStackBuilder.createObject(InterceptorStackBuilder.java:54)
at org.apache.tapestry5.ioc.internal.RecursiveServiceCreationCheckWrapper.createObject(RecursiveServiceCreationCheckWrapper.java:60)
at org.apache.tapestry5.ioc.internal.OperationTrackingObjectCreator$1.invoke(OperationTrackingObjectCreator.java:45)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
at org.apache.tapestry5.ioc.internal.PerThreadOperationTracker.invoke(PerThreadOperationTracker.java:87)
.
.
.
.
.
Caused by: java.lang.RuntimeException: Error invoking constructor public org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl(org.slf4j.Logger,java.util.List): No identifier specified for entity: com.fit.beans.ServiceDepartmentBean
at org.apache.tapestry5.ioc.internal.util.ConstructorInvoker.invoke(ConstructorInvoker.java:57)
at org.apache.tapestry5.ioc.internal.util.LoggingInvokableWrapper.invoke(LoggingInvokableWrapper.java:42)
at org.apache.tapestry5.ioc.internal.OperationTrackerImpl.invoke(OperationTrackerImpl.java:74)
... 72 more
Caused by: org.hibernate.AnnotationException: No identifier specified for entity: com.fit.beans.ServiceDepartmentBean
at org.hibernate.cfg.AnnotationBinder.bindClass(AnnotationBinder.java:672)
at org.hibernate.cfg.AnnotationConfiguration.processArtifactsOfType(AnnotationConfiguration.java:546)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:291)
at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1333)
at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:867)
at org.apache.tapestry5.internal.hibernate.HibernateSessionSourceImpl.<init>(HibernateSessionSourceImpl.java:46)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
at org.apache.tapestry5.ioc.internal.util.ConstructorInvoker.invoke(ConstructorInvoker.java:48)
... 74 more
解决方案
Remove constructor from
@EmbeddedId
private ServiceDepartmentPK serviceDepartmentPK;
Remove @ManyToOne annotation from ServiceDepartmentPK class and set fields types to long or int
@Embeddable
public class ServiceDepartmentPK implements Serializable {
private static final long serialVersionUID = 1L;
@Column(name="COLUMN_NAME")
private long clientId;
@Column(name="COLUMN_NAME")
private long carServiceId;
public ServiceDepartmentPK () {
}
// getters setters for client and carserver ids-s
public boolean equals(Object other) {
if (this == other) {
return true;
}
if (!(other instanceof ServiceDepartmentPK )) {
return false;
}
ServiceDepartmentPK castOther = (ServiceDepartmentPK )other;
return
(this.scopeId == castOther.clientId)
&& (this.scriptId == castOther.carServiceId);
}
public int hashCode() {
final int prime = 31;
int hash = 17;
hash = hash * prime + ((int) (this.clientId ^ (this.clientId>>> 32)));
hash = hash * prime + ((int) (this.carServiceId ^ (this.carServiceId>>> 32)));
return hash;
}
}
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